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Unusable Device
Please Disconnect
USB Device.
A USB device or USB Flash
memory drive that is not
supported has been connected to
the USB direct interface.
(For more information, visit us at
http://solutions.brother.com
.)
Unplug the device from the USB direct
interface.
Wrong Paper Size Paper is not the correct size. Check that the Paper Size setting matches
the size of paper in the tray. Load the
correct size of paper, and then press
Mono Start or Colour Start. (See Paper
Size on page 28.)
Error Message Cause Action